CATBearing & Bushing

1666758 Universal Joint Gp — Cat 938G 938G ii

This is a universal joint group assembly, a critical component in driveshaft systems that transmits rotational power between misaligned shafts. It is constructed from high-strength steel alloys and precision-machined to ensure smooth, consistent torque transfer, unlike a worn U-joint with excessive play or a damaged bearing cap. Operators might notice clunking noises when shifting into gear or accelerating, or a vibration felt through the machine's chassis.

Universal Joint Gp – Part No 1666758 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBearing & Bushing
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

T.', };

Related CAT Parts

From the same category — may also be needed

4362594
Bearing-Roller
7T3746
Bearing
4L4145
Bearing
8g4373
Bearing
2V6550
Bearing
4b8574
Bearing

Browse all CAT Bearing Bushing →

Installation & Application Notes

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeUniversal Joint Assembly
MaterialForged steel
ApplicationDriveshaft power transmission
Service LifeInspect every 500 hrs, replace as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A common initial symptom of a failing universal joint is a clunking sound when engaging the drivetrain or changing direction. As wear progresses, this noise can become more pronounced, accompanied by vibrations felt through the operator's station. If left unaddressed, a severely worn U-joint can lead to driveshaft imbalance, potential separation, and damage to transmission or differential components.

Installation Tip

Ensure the driveshaft is properly supported and aligned before attempting to install the new U-joint. Avoid hammering the U-joint caps into place, as this can damage the bearing needles.

Service Note

Inspect the driveshaft balance, center support bearing (if applicable), and companion flanges for wear or damage when replacing the universal joint.